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Cavalrymen prepare their horses for the ceremony of Changing the Guard, at the headquarters of the National Guard's Cavalry division in the municipality of Ajuda, in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195286 )

A member of the mounted brass band of Portugal's National Guard takes part in the ceremony of Changing the Guard at the Belem palace in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195302 )

A member of the Portuguese National Guard's mounted brass band takes part in a training session at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195387 )

A cavalryman rides past instruments after taking part in a training session at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195327 )

Cavalrymen prepare to take part in the ceremony of Changing the Guard, at the headquarters of the National Guard's Cavalry division in the municipality of Ajuda, in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195300 )

A man takes care of a horse of the mounted brass band of Portugal's National Guard at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195374 )

A cavalryman cleans the harness of his horse before taking part in a training session at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195316 )

A Cavalryman prepares his horse for the ceremony of Changing the Guard, at the headquarters of the National Guard's Cavalry division in the municipality of Ajuda, in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195310 )

A cavalryman showers his horse after taking part in a training session at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195323 )

Members of the mounted brass band of Portugal's National Guard take part in the ceremony of Changing the Guard at the Belem palace in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195304 )

Members of the mounted brass band of Portugal's National Guard take part in the ceremony of Changing the Guard at the Belem palace in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195307 )

Members of the mounted brass band of Portugal's National Guard gather to take part in the ceremony of Changing the Guard, at the National Guard Cavalry Regiment headquarters in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195472 )

Cavalrymen prepare their horses for the ceremony of Changing the Guard, at the headquarters of the National Guard's Cavalry division in the municipality of Ajuda, in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195286 )

Cavalrymen prepare to take part in the ceremony of Changing the Guard, at the headquarters of the National Guard's Cavalry division in the municipality of Ajuda, in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195300 )

A member of the mounted brass band of Portugal's National Guard takes part in the ceremony of Changing the Guard at the Belem palace in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195302 )

Members of the mounted brass band of Portugal's National Guard take part in the ceremony of Changing the Guard at the Belem palace in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195307 )

A cavalryman cleans the harness of his horse before taking part in a training session at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195316 )

A cavalryman showers his horse after taking part in a training session at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195323 )

A cavalryman rides past instruments after taking part in a training session at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195327 )

A man takes care of a horse of the mounted brass band of Portugal's National Guard at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195374 )

A member of the Portuguese National Guard's mounted brass band takes part in a training session at the National Guard's third squad facilities at Braco de Prata in Lisbon, on August 16, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195387 )

The commander of the mounted brass band of Portugal's National Guard gives instructions before the ceremony of Changing the Guard, at the National Guard Cavalry Regiment headquarters in Lisbon, on August 18, 2013. The cavalry of Portugal's National Guard has a unique mounted brass band which was created in 1942. It features various instruments including cavalry trumpets, flugelhorn and kettledrum. The cavalry, which consists of 130 white or piebald horses and 27 riders, take part in various official ceremonies and touristic events, including the Change of Guards at Belem's National Palace. PATRICIA DE MELO MOREIRA/AFP/Getty Images ( 522195529 )